JS ...rest syntax demo

HTML

<h3>
JS <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/rest_parameters" target="_blank">...rest syntax</a> demo
</h3>

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JavaScript

function test(metadata, level, messageTemplate) {
     var args = Array.prototype.slice.call(arguments, 3);
    if (args && args.length > 0) {
        var message = util.format(messageTemplate, args);
          console.log(message);

      }
   
}
test({},"DEBGUG","%s : %s", "toto", "tata" );